title: Photonic band gap in isotropic hyperuniform disordered solids with low dielectric contrast.
abstract: We report the first experimental demonstration of a TE-polarization photonic band gap (PBG) in a 2D isotropic hyperuniform disordered solid (HUDS) made of dielectric media with a dielectric index contrast of 1.6:1, very low for PBG formation. The solid is composed of a connected network of dielectric walls enclosing air-filled cells. Direct comparison with photonic crystals and quasicrystals permitted us to investigate band-gap properties as a function of increasing rotational isotropy. We present results from numerical simulations proving that the PBG observed experimentally for HUDS at low index contrast has zero density of states. The PBG is associated with the energy difference between complementary resonant modes above and below the gap, with the field predominantly concentrated in the air or in the dielectric. The intrinsic isotropy of HUDS may offer unprecedented flexibilities and freedom in applications (i. e. defect architecture design) not limited by crystalline symmetries.
authors.forename: Weining
authors.initials: W
authors.lastname: Man
authors.forename: Marian
authors.initials: M
authors.lastname: Florescu
authors.forename: Kazue
authors.initials: K
authors.lastname: Matsuyama
authors.forename: Polin
authors.initials: P
authors.lastname: Yadak
authors.forename: Geev
authors.initials: G
authors.lastname: Nahal
authors.forename: Seyed
authors.initials: S
authors.lastname: Hashemizad
authors.forename: Eric
authors.initials: E
authors.lastname: Williamson
authors.forename: Paul
authors.initials: P
authors.lastname: Steinhardt
authors.forename: Salvatore
authors.initials: S
authors.lastname: Torquato
authors.forename: Paul
authors.initials: P
authors.lastname: Chaikin